Neighborhood Report
Grade D
Upper Marlboro, MD Neighborhood Water Quality — Clean Compliance
5 ZIP codes · 0 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Upper Marlboro, MD. We analyzed 5 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade D (53/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 1 | 20% |
| D | 4 | 80% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Upper Marlboro ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 20774 | 55 | C | 0 | No data |
| 2 | 20773 | 53 | D | 0 | No data |
| 3 | 20775 | 53 | D | 0 | No data |
| 4 | 20792 | 53 | D | 0 | No data |
| 5 | 20772 | 50 | D | 0 | No data |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 0 neighborhoods score better than county average
- 5 neighborhoods score worse than county average
Frequently Asked Questions
What is the safest neighborhood in Upper Marlboro?
ZIP code 20774 has the highest safety score in Upper Marlboro at 55/100 (grade C). Check the full report for details.
Is Upper Marlboro water safe to drink?
Upper Marlboro has an average water safety score of 53/100 (D). Water quality varies by neighborhood — no ZIP codes currently exceed EPA lead limits. Always check your specific ZIP code.
Related Pages
Data Sources
- EPA SDWIS
- U.S. Census Bureau
Updated daily.